1501-2000

Question 1

Question

Answer 1

Answer

Question 2

Which one of the following is least likely to be a radon emitter?

Answer 2

Obsidian

Question 3

Perhaps the most significant source of indoor air pollution in terms of particulate levels is:

Answer 3

Cigarette smokers

Question 4

The main source of childhood exposure to particulate pollution is:

Answer 4

Tobacco smoke

Question 5

In what type structures are indoor levels of formaldehyde likely to be rather high?

Answer 5

Mobile homes

Question 6

Fungal spores, bacterial and animal dander are examples of

Answer 6

Biological pollutants

Question 7

Dust mites seem to proliferate in the presence of

Answer 7

Use of humidifiers

Question 8

Most cases of sick building syndrome can be traced to:

Answer 8

Inadequate ventilation

Question 9

The major constituent of the atmosphere today is:

Answer 9

Nitrogen

Question 10

The region of the atmosphere where virtually all life activities occur in the:

Answer 10

Troposphere

Question 11

The region of the atmosphere where the temperature slowly rises with increases in altitude is the:

Answer 11

Stratosphere

Question 12

Most ultraviolet radiation in sunlight is absorbed by the ozone layer as it passes through the:

Answer 12

Stratosphere

Question 13

The reason that there are differences in the amount of infrared absorption in various climatic regions is because:

Answer 13

The amount of water vapor varies

Question 14

Ground radiation refers to:

Answer 14

Outward radiation of energy from the

Question 15

The Greenhouse Effect is the result of

Answer 15

re-radiation of infrared waves back to the earth’s surface

Question 16

The reason that the ozone layer is so important is because it:

Answer 16

it protects life forms from solar ultraviolet radiation

Question 17

The most serious threat to the ozone layer is:

Answer 17

chlorofluorocarbons

Question 18

The “hole in the sky” was first found over:

Answer 18

The South Pole

Question 19

The main component of the Montreal Protocol was the:

Answer 19

cutting back and eventually eliminating the use of chlorofluorocarbons

Question 20

The historical significance of the Montreal Protocol is:

Answer 20

the agreement among nations of the world to work together to prevent a disaster of global proportions

Question 21

Which one of the following is not one of the major atmospheric gases?

Answer 21

ozone

Question 22

Perhaps one of the greatest environmental issues of the late 20th century will be:

Answer 22

the Greenhouse Effect

Question 23

Nearly 1/4 of all global carbon dioxide emissions are the result of

Answer 23

deforestation

Question 24

Concern over increased carbon dioxide levels in the atmosphere revolve around issues of

Answer 24

global temperature

Question 25

The Greenhouse Effect is being enhanced by the increase of all the following gases in the atmosphere except:

Answer 25

oxygen

Question 26

Which one of the following is potentially the most important in terms of global warming?

Answer 26

methane

Question 27

The major impact of global warning would most likely be in:

Answer 27

an alteration of world-wide rainfall

Question 28

It is most likely that the greatest temperature increases as a result of global warming will occur in:

Answer 28

high latitude regions of northern hemisphere

Question 29

Which one of the following is not a potential impact of global warming?

Answer 29

increased crop yield, particularly of citrus fruits

Question 30

Which one of the following may be the most devastating to biodiversity?

Answer 30

global warming

Question 31

Which one of the following will perhaps the most dramatic consequence of global warming?

Answer 31

rising sea level

Question 32

A major part of the Earth Summit was to:

Answer 32

stabilize concentrations of greenhouse gases at 1990 levels

Question 33

Which one of the following nations has the greatest annual rate of carbon dioxide production?

Answer 33

China

Question 34

The only way the atmospheric carbon dioxide level would not continue to increase would be slash emissions to:

Answer 34

60% of their 1990 levels

Question 35

Which one of the following is least likely to be a viable response to stop global warming:

Answer 35

rapidly expand nuclear power generation

Question 36

Even if reduction of the emission of CFCs and other greenhouse gases were accomplished, the effect of what is already in the atmosphere will be exerted for approximately:

Answer 36

100 years

Question 37

At present the largest source of methane is:

Answer 37

cultivation of rice

Question 38

Which one of the following, when burned, emits the most carbon dioxide?

Answer 38

coal

Question 39

To improve the accuracy of global warming predictions:

Answer 39

more understanding of ocean dynamics is needed

Question 40

The relationship between the photosynthetic rate of green plants and the carbon dioxide content of the atmosphere may aptly be termed:

Answer 40

carbon dioxide fertilization

Question 41

A basic concept embodied in the Green Lights program is:

Answer 41

energy conservation

Question 42

If the Green Lights program is successful:

Answer 42

pollution from fossil fuel production will decrease

Question 43

What “attracted” industry to the use of chlorofluorocarbons:

Answer 43

their chemical stability

Question 44

Which one of the following gases was not scheduled for phaseout by 1996 as a result of the Montreal Protocol?

Answer 44

halon

Question 45

Which one of the following gases seems to present the greatest challenge in terms of elimination of its use?

Answer 45

freon

Question 46

The ban of chlorofluorocarbons was not targeted at those companies that:

Answer 46

use the gas

Question 47

The term “frequency” cannot be described as

Answer 47

Particles

Question 48

The shorter the wave length

Answer 48

The higher the frequency and energy

Question 49

The roentgen is a measure of the ionization in air produced by exposure to

Answer 49

x-rays or gamma rays

Question 50

The term “rem” is short for

Answer 50

Roentgen Equivalent Man

Question 51

Which term is used to show the exposure of large populations to low level radiation?

Answer 51

Person-rem

Question 52

The term “genetic radiation” refers to effects of radiation on

Answer 52

Generations yet unborn

Question 53

MPD is the abbreviation for

Answer 53

Maximum permissible dose

Question 54

Common deficiencies regarding fluoroscopy units may be

Answer 54

REF!

Question 55

CAT scanners are used to locate

Answer 55

REF!

Question 56

The term “half-value layer” (HVL) is used to designate the thickness of a particular material that will reduce, by one-half, the intensity of radiation passing through the material. Beta radiation is commonly eliminated by

Answer 56

Glass or plastic

Question 57

The siting of nuclear facilities is subject to extensive regulation and licensing by the

Answer 57

Nuclear regulatory commission

Question 58

The FDA requires that sunlamps that radiate UV rays be equipped with timers which automatically shut off after

Answer 58

None of the above

Question 59

X-rays units are generally due for reinspection

Answer 59

Every 2 to 3 years

Question 60

Lasers emit

Answer 60

Electromagnetic radiation

Question 61

Microwave ovens use which of the following energy sources?

Answer 61

Electromagnetic

Question 62

The longer the wave length, the lower the frequency and energy.

Answer 62

TRUE

Question 63

The nature of all radiation is the same, and the difference lies only in the frequency and wave length.

Answer 63

FALSE

Question 64

Survey meters are usually read in roentgens or milliroentgens per hour.

Answer 64

TRUE

Question 65

A radioisotope is an artificially created radioactive isotope of a chemical element that is normally not radioactive.

Answer 65

TRUE

Question 66

Beta particles can be health hazard either as internal or external radiation because of the ionization in tissues.

Answer 66

TRUE

Question 67

Generic effects from radiation exposure are usually immediately evident.

Answer 67

FALSE

Question 68

Most cells, tissue and organs of the body are independent and the destruction of one will not affect the other.

Answer 68

FALSE

Question 69

Biological effects should govern the required standards of radiological protection.

Answer 69

FALSE

Question 70

In assessing radiation hazard, the sum total of all exposures should be considered.

Answer 70

TRUE

Question 71

Actual amounts of radiation exposure received in different parts of the world will vary with altitude, background and medical practices.

Answer 71

TRUE

Question 72

With dental x-rays, it is necessary to establish the correct exposure time for kilovoltage, milliamperage and source-to-skin distance.

Answer 72

TRUE

Question 73

It is believed by some researchers that the hazards of low level radiation may be worse than previously predicted, supporting the principle that “x-rays should be used only when there is good medical reason.”

Answer 73

TRUE

Question 74

It is not necessary for a dental unit to have filters.

Answer 74

FALSE

Question 75

The discoverer of X-rays was:

Answer 75

Roentgen

Question 76

The term “radioactivity” was “coined” by

Answer 76

Marie and Pierre Curie

Question 77

Which one of the following is not a part of particulate radiation?

Answer 77

x-ray

Question 78

All of the following are considered ionizing radiation except:

Answer 78

Ultraviolet light

Question 79

Resident of which of the following citied would probably receive the most cosmic radiation?

Answer 79

Lake Placid

Question 80

Which one of the following is least penetrating?

Answer 80

Alpha rays

Question 81

Which one of the following is most penetrating?

Answer 81

Gamma rays

Question 82

Residents of which of the following cities would probably receive the most exposure from naturally occurring radioactive minerals?

Answer 82

Vale, California

Question 83

From the standpoint of exposure to radioactive minerals, which one of the following building materials would probably be most “safe”?

Answer 83

Wood

Question 84

Which one of the following is not natural source of radiation exposure?

Answer 84

Nuclear power plants

Question 85

Perhaps our single most significant source of radiation exposure is:

Answer 85

Radon

Question 86

The greatest exposure to human made ionizing radiation for most individuals is through:

Answer 86

Medical x-rays

Question 87

The consumer product most significant in terms of radiation exposure is:

Answer 87

cigarettes

Question 88

Perhaps the most “infamous” incidence of radiation-induces illness involved:

Answer 88

Women who painted watch dials

Question 89

The best management for intensely radioactive isotopes that have very short half-lives is:

Answer 89

Isolate them from human contact during their acute phase

Question 90

The amount of radiation damage in human exposure to ionizing radiation is measured in term of:

Answer 90

sieverts

Question 91

Which one of the following is true?

Answer 91

Low levels of ionizing radiation have a potential to cause cell damage rather than cell deaths

Question 92

Perhaps the greatest problem that resulted from the testing of nuclear weapons prior to the Nuclear Test Ban Treaty was:

Answer 92

Radioactive contamination of soil and water

Question 93

Which one of the following is true?

Answer 93

There is a linear relationship between exposure to ionizing radiation and gene mutation

Question 94

Which one of the following is the greatest genetic concern in terms of exposure to ionizing radiation?

Answer 94

Mutations that accumulate in the gonads

Question 95

Sensitivity to radiation is probably highest:

Answer 95

During fetal development

Question 96

The majority of damage from X-rays during fetal development is to the:

Answer 96

Nervous system

Question 97

Perhaps the most often observed birth defect that is the result of fetal exposure to X-rays is:

Answer 97

microcephaly

Question 98

The most harmful effects of ionizing radiation on human fetal tissue is during:

Answer 98

The second through sixth week of gestation

Question 99

Perhaps the first indication of the health problems associated with exposure to ionizing radiation were the result of a high incidence of

Answer 99

Skin cancers

Question 100

Approximately what percentage of medical and dental X-rays do federal officials estimate to be unnecessary by federal officials?

Answer 100

33

Question 101

Which one of the following has not been suggested as a reason that Americans are receiving excess exposure to X-rays?

Answer 101

Medicaid/medicare requirements

Question 102

Which one of the following is false?

Answer 102

Children should have routine dental X-rays as part of screening programs

Question 103

Perhaps the classic example of X-ray induced malignancy is:

Answer 103

Leukemia

Question 104

In terms of health problems associated with ionizing radiation, perhaps the most prudent way to safeguard public health is to:

Answer 104

Subscribe to the linear dose-response curve

Question 105

Standards for ionizing radiation exposure:

Answer 105

Represent a balance between adverse effects and known benefits

Question 106

Prior to 2008, there have been no new nuclear reactors ordered by US utility companies in the US since:

Answer 106

1978

Question 107

The percentage of electrical energy generated for use in the US by nuclear power plants is approximately:

Answer 107

20

Question 108

The fissionable fuel in all US nuclear reactors is:

Answer 108

Uranium

Question 109

The major problem associated with uranium mining is the possible development of:

Answer 109

Lung cancer

Question 110

Which one of the following is not one way to protect the safety of uranium miners?

Answer 110

Provide special warning monitors for miners to wear

Question 111

A major problem associated with the milling of uranium ore is the:

Answer 111

Production of radioactive tailings

Question 112

Considered by many as the source of greatest public exposure related to nuclear power production is:

Answer 112

Uranium mill tailings

Question 113

Which one of the following creates perhaps the greatest risk of exposure to ionizing radiation?

Answer 113

Mining the uranium

Question 114

Under normal operating conditions, public exposure to ionizing radiation from nuclear power plants is primarily from:

Answer 114

Deliberate release of radioactive gas

Question 115

The reason fallout levels from Chernobyl were considerably less than might have been anticipated was:

Answer 115

Favorable weather conditions prevailed

Question 116

The defense in depth concept that is used in constructing nuclear plants is:

Answer 116

Characterized by repeated layers of thick shielding materials

Question 117

A major concern associated with Chernobyl style nuclear reactors is:

Answer 117

Accidental radioactive releases would be sent directly into the atmosphere

Question 118

A potential public health problem associated with reprocessing nuclear fission material is:

Answer 118

Volatile radioisotopes are released into the atmosphere

Question 119

Which one of the following is a characteristic of high level nuclear wastes?

Answer 119

They generally arise from spent reactor fuel

Question 120

The US site that appears to be the focus of consideration for the nation’s first permanent repository for nuclear waste is in:

Answer 120

Yucca Mountain, NV

Question 121

A problem that utility companies are intimating may force them to close operation of nuclear power plants is lack of

Answer 121

A waste disposal alternative

Question 122

The Monitored Retrievable Storage (MRS) concept deals with:

Answer 122

Storage of spent nuclear fuel in above-ground casks

Question 123

The major target for damage associated with ultraviolet radiation is:

Answer 123

Cellular DNA

Question 124

The major concern related to ultraviolet radiation within humans is with:

Answer 124

Skin cancer

Question 125

What percentage of the typical American’s lifetime exposure to ultraviolet radiation occurs before age 20?

Answer 125

80

Question 126

Which one of the following is not an anticipated benefit of regularly using a sunscreen of SPF 15 from infancy through age 18 is:

Answer 126

Lowered risk of oat cell carcinoma

Question 127

Perhaps the best sunscreens are those:

Answer 127

That are most water resistant

Question 128

Perhaps the major problem associated with selecting a sunscreen based on SPF alone is:

Answer 128

Lack of generally accepted standards for determining SPF

Question 129

Basal and squamous cell carcinomas are most commonly associated with exposure to:

Answer 129

UVB

Question 130

The most common form of cancer in women under age 30 is:

Answer 130

Malignant melanoma

Question 131

Malignant melanoma seems to be related to:

Answer 131

Occasional severe sunburn

Question 132

Owners of tanning salons claim they offer a safe tan because they:

Answer 132

Use only UVA light

Question 133

UVA has been associated with all of the following except:

Answer 133

Lessened sunburning

Question 134

Exposure to even moderate amounts of ultraviolet radiation can be dangerous for individuals suffering from:

Answer 134

Lupus erythematosus

Question 135

Which one of the following is false?

Answer 135

Microwaves are a form of ionizing radiation

Question 136

Absorption of microwave energy by bodily tissues is largely associated with the:

Answer 136

Amount of water content of the tissue

Question 137

Which one of the following is probably least susceptible to microwave induced injury?

Answer 137

liver

Question 138

Probably the best understood type of microwave induced injury involves:

Answer 138

Excessive heating of internal organs

Question 139

The major controversy associated with injury as the result of microwave exposure deals with:

Answer 139

Prolonged low levels of exposure

Question 140

Which one of the following does not seem to be associated with exposure to microwaves?

Answer 140

Men fathering only male offspring

Question 141

Which one of the following is true?

Answer 141

The risks associated with childhood exposure to EMF are inconclusive

Question 142

The weight and shape of temporary storage containers must be kept within the limits that can be easily and conveniently handled by the collection crew, with the weight preferably not exceeding

Answer 142

70 pounds

Question 143

Frequency of collection depends on

Answer 143

REF!

Question 144

In business districts, refuse, including garbage from hotels and restaurants, should be collected daily, except on

Answer 144

Sundays

Question 145

Open dumps should be considered

Answer 145

REF!

Question 146

The home grinding system shreds garbage into small particles while being mixed with water and is discharged to the

Answer 146

house sewer

Question 147

Garbage reduction melts out fats that are used in manufacturing of

Answer 147

soaps, glycerines and cosmetics

Question 148

Composting is the controlled decay of organic matter that may come from

Answer 148

REF!

Question 149

Which of the following composting method will require limited land space?

Answer 149

none of the above

Question 150

__ is the thermochemical process for the conversion of complete organic solids in the absence of added oxygen, to water, combustible gases, tarry liquids and stable residue.

Answer 150

pyrolysis

Question 151

Resource recovery can be expected to achiever no more than are __ duction in future landfill volume requirement.

Answer 151

60 percent

Question 152

The disposal of used tires presents a problem but shredded tires may be used as

Answer 152

fuel for industries

Question 153

hazardous wastes include which of the following types of substances?

Answer 153

REF!

Question 154

The most common problems associated with the disposal of hazardous waste are

Answer 154

REF!

Question 155

The amount of residue left after incineration is approximately

Answer 155

10 to 15 percent of the original volume

Question 156

To provide enough refuse for an incinerator to continuously operate, a refuse storage pit/bin must hold approximately

Answer 156

4 days of refuse

Question 157

When trying to establish economical hauling, what is most important?

Answer 157

hauling time

Question 158

Landfill sites should be at least __ from streams, lakes or other surface bodies of water

Answer 158

200 feet

Question 159

Leachate containing primarily low molecular weight organic compounds are best treated by

Answer 159

biological methods

Question 160

Which of the following is not considered an advantage to using shredded solid waste landfill?

Answer 160

it will readily absorb precipitation

Question 161

Large items that are not salvaged should be

Answer 161

a. set directly into the landfill, b. placed in an alternative location, c. compressed or shredded

Question 162

Which hazard is related to size reduction method for solid waste?

Answer 162

explosions

Question 163

According to EPA which is not a characteristic of hazardous waste.

Answer 163

friability

Question 164

After a landfill is closed, how much soil should be placed on top of the site?

Answer 164

two feet

Question 165

In valleys and ravines, what method of landfilling is considered the best?

Answer 165

area

Question 166

How often should refuse he compacted during the average work day?

Answer 166

continually

Question 167

How much earth should be placed on refuse at the end of the day?

Answer 167

6 inches

Question 168

Which would not be considered an appropriate use for a completed landfill?

Answer 168

housing development

Question 169

What type soil is most desirable as a landfill cover?

Answer 169

sandy loam

Question 170

What reference would you use to determine if an infectious waste that contains viable organisms is included?

Answer 170

RCRA Act

Question 171

Venturi scrubbers, spray towels and packed towers are examples of what type of waste treatment methods?

Answer 171

absorption

Question 172

Which product would probably have the lowest reclamation value?

Answer 172

glass

Question 173

Which statement is correct in regards to methane gas production?

Answer 173

anaerobic methane gas-producing bacteria produce methane

Question 174

What contaminant may accompany methane production if large amounts of sulfate are also present?

Answer 174

H2S

Question 175

The most common problem associated with the disposal of hazardous waste is:

Answer 175

groundwater contamination

Question 176

PCBs have been used in which systems/devices?

Answer 176

REF!

Question 177

Which is not an essential factor in the combustion phase of an incinerator?

Answer 177

moisture

Question 178

When selecting a location for a sanitary landfill, which is correct?

Answer 178

hauling time is more important than hauling distance

Question 179

The direction of operation in involving a sanitary landfill should be:

Answer 179

with the prevailing wind

Question 180

Homes containing garbage disposals should have a septic tank capacity increased by what % in order to accommodate the increased organic loading?

Answer 180

50%

Question 181

After collection, there are four main steps involved in resource recovery. Place in correct order:

Answer 181

size reduction, separation, recovery, utilization

Question 182

Refuse collection frequency depends largely on the length of time required for fly eggs to mature through the larval stages into adults. Under optimum summer temperatures, maturation time is:

Answer 182

7-10 days

Question 183

Which of the following is an unacceptable operating practice at a sanitary landfill?

Answer 183

a specific time and lace should be designated for the dumping of sewage sludge, agricultural wastes and toxic substances

Question 184

The most satisfactory basis for measuring quantities of solid waste is by:

Answer 184

weight

Question 185

The type of sanitary landfill that should be developed on essentially flat land sited in dry areas is:

Answer 185

area landfills

Question 186

Compactibility of soil in landfills depends primarily on:

Answer 186

the gradient of the particle size of the soil

Question 187

The depth of the earth required on the final surface of a sanitary landfill is:

Answer 187

2 feet

Question 188

On the basis of weight, which of the following materials constitutes the largest component of domestic solid waste?

Answer 188

paper

Question 189

Refuse in an established sanitary landfill decomposes by the bacterial process of:

Answer 189

anaerobic decomposition

Question 190

Under RCRA, the EPA has developed standards and procedures that must be followed be all persons that:

Answer 190

generate, transport, treat, store or dispose of hazardous waste

Question 191

The Federal Resource Conservation and Recovery Act of 1976 (RCRA) is mainly concerned with:

Answer 191

solid wastes

Question 192

Which of the following conditions may minimize the problem of leachate?

Answer 192

low rainfall and high transpiration rate

Question 193

Which component of solid waste storage, collection and disposal must be subsidized from the other?

Answer 193

disposal from collection fees

Question 194

The two most common methods of sanitary landfill operation are

Answer 194

area method and trench method

Question 195

Hazardous wastes should not be placed in an ordinary sanitary landfill because:

Answer 195

the wastes could contaminate the surrounding air, land or soil

Question 196

When aerobic synthesis occurs in a landfill, it is expected that the refuse is:

Answer 196

in the early stages of decomposition

Question 197

Advantages of the land disposal of digested sewage (sludge) include all except:

Answer 197

build-up of heavy metals in the soil

Question 198

A solid waste manager is trying to reduce lead in the solid waste stream. What should be targeted in the municipal waste stream as a major contributor to the environment?

Answer 198

lead acid batteries

Question 199

All of the following are considered advantages of using the shredded solid waste landfill method except:

Answer 199

it will readily absorb precipitation

Question 200

Which of the following is not a type of hazardous waste incinerator?

Answer 200

pressurized

Question 201

Which federal law regulates underground storage tanks for hazardous substances?

Answer 201

Resource Conservation and Recovery Act

Question 202

A measure of the probability and severity of adverse effects under specific conditions best describes

Answer 202

risk

Question 203

Which of the following sampling devices is best for collecting undisturbed soil samples

Answer 203

split spoon

Question 204

In the APHA method of measuring housing quality, which of the following would be considered a minor deficiency if found inadequate?

Answer 204

central heating

Question 205

A minimum of __ of sleeping area per person is required in the APHA appraisal method.

Answer 205

40 ft2

Question 206

The ASHRAE recommended minimal thermal standard for dwelling is __F at 40% humidity and an air circulation rate of 45 fpm.

Answer 206

76F

Question 207

In unsewered areas, the responsibility for water and sewer for new subdivisions is assigned to the

Answer 207

developer

Question 208

The end of a waste pipe should terminate at least __ above the rim of a sink or receptacle directly connected to the drainage system.

Answer 208

2 inches

Question 209

Salvato recommends at least one water closet for each __ beds in a hospital or nursing home.

Answer 209

eight

Question 210

The housing code, regardless of who promulgates it is

Answer 210

a complex environment health code requiring the involvement of environmental health scientists and sanitarians

Question 211

Lead levels exceeded 10ug/dL in US children aged 6 and under in 1990

Answer 211

3000000

Question 212

In children, blood lead levels (BLLs) more than __ are associated with decreased intellectual performance and other adverse health events.

Answer 212

10 ug/dL

Question 213

All of the following are characteristics of an ideal shielding material for lead paint surfaces except

Answer 213

high density and mass

Question 214

CDC advocates a multitier approach for environmental management of lead threats. This approach has which of the following steps

Answer 214

REF!

Question 215

Radon cannot be reduced with which of the following devices

Answer 215

none of the above

Question 216

The best control of formaldehyde air pollution in the home is

Answer 216

REF!

Question 217

Short term exposure to formaldehyde levels above __ can cause serious health or life threatening reactions

Answer 217

50 ppm

Question 218

If radon is a problem in your area the following locations would be rooms of higher risk;

Answer 218

basements

Question 219

Individuals assigned to regulatory programs should be

Answer 219

a. exceptionally qualified by both training and experience, c. have achieved appropriate certifications

Question 220

Most mobile homes are

Answer 220

REF!

Question 221

The control of bloodborne pathogens is regulated by

Answer 221

OSHA

Question 222

The incidence of tuberculosis in English laboratory workers working with M. tuberculosis was reported to be __ higher than for the general population

Answer 222

5 times

Question 223

The term containment is used in describing

Answer 223

safe methods for managing infectious agents in the laboratory

Question 224

The four biosafety containment levels consist of a combination of

Answer 224

laboratory practices, safety equipment and facilities

Question 225

Campylobacter (C. jejuni/C. coli, C. fetus subsp. fetus) may be safely used in the laboratory as a minimum at

Answer 225

biosafety level 2

Question 226

The release of genetically engineered materials to the environment is regulated by

Answer 226

USDA and EPA

Question 227

A national performance standard has been developed by the

Answer 227

National Sanitation Foundation (NSF)

Question 228

Perhaps the most important feature in implementing programs in biosafety is

Answer 228

working with the client in a consultative mode

Question 229

The implementation of a biosafety program begins with

Answer 229

an assessment of risk

Question 230

Which one of the following enter directly into biological processes?

Answer 230

Carbon dioxide

Question 231

The increase in the concentration of carbon dioxide in the earth’s atmosphere might be occurring because of:

Answer 231

the increased consumption of fossil fuels